qpasswordfield.java

j2me 高级UI

/**
 * 作者：cat 戚永城
 * 时间：2008-3-1
 * QQ：415898635
 * E-Mail：	[e-mail]
 * 			[e-mail]
 * 
 * */
package org.qui.conmponent;

import javax.microedition.lcdui.Graphics;
import org.qui.image.JiugongDiv;
import org.qui.info.Attribute;
import org.qui.manager.QInputItem;
import org.qui.manager.UIManager;

public class QPasswordField extends QInputItem {

	public QPasswordField(){
		super();
	}
	
	public QPasswordField(int x, int y, int width, int height) {
		super(x, y, width, height);
		fr=Attribute.text_foreR;
		fg=Attribute.text_foreG;
		fb=Attribute.text_foreB;
	}

	public char passShow = '*';

	public void paint(Graphics g) {
		// 画背景
		if (focus) {
			JiugongDiv.drawJiuGong(g, UIManager.text_focus, x + ui.offx, y + ui.offy, width, height);
		} else {
			JiugongDiv.drawJiuGong(g, UIManager.text_normal, x + ui.offx, y + ui.offy, width, height);
		}
		// 边框（可有可无）
		// 画label  缩减5像素
		g.setColor(fr, fg, fb);
		g.setFont(font);
		int chrWidth = font.charWidth(passShow);
		int length = text.length();
		int maxChars=(width-10)/chrWidth;
		if (chrWidth * length > width) {
			for (int i = 0; i < maxChars; i++) {
				g.drawChar(passShow, x + ui.offx + width - 6 - i * chrWidth, y + ui.offy + height - 1, Graphics.RIGHT | Graphics.BOTTOM);
			}
		} else {
			for (int i = 0; i < length; i++) {
				g.drawChar(passShow, x + ui.offx + 6 + i * chrWidth, y + ui.offy + height - 1, Graphics.LEFT | Graphics.BOTTOM);
			}
		}
		super.paint(g);
	}

	public void keyPressed(int keyCode) {
		super.keyPressed(keyCode);
	}

	public void keyReleased(int keyCode) {
		super.keyReleased(keyCode);

	}
}